събота, 17 октомври 2015 г.

thermodynamic - mechanical puzzles

Some thermodynamic - mechanical puzzles
1. drawing


2.drawing




drawing 3


drawing 4




What power we will need to rotate the crank?
It will change the temperature of the working substance?

drawing 5




Win/Wout = ?

drawing 6



Wout > Win ?

drawing 7

Wout > Win ?

drawing 8



Wout / Win = ?

drawing 9



Wout / Win = ?

drawing 10



Wout / W in = ?